ntfs3(loop4): Failed to load $Extend (-22). ntfs3(loop4): Failed to initialize $Extend. ntfs3(loop4): ino=1b, "file0" ntfs_readdir Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 6948 Comm: syz.4.110 Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:pick_link+0x4f1/0xe80 fs/namei.c:1949 Code: 4c 89 f7 e8 f1 fc ea ff 4d 8b 36 4d 85 f6 0f 84 9b 00 00 00 e8 d0 a4 89 ff 49 bf 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 b9 06 00 00 41 0f b6 2e bf 2f 00 00 00 RSP: 0018:ffffc9000bc1f7e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000bc1f908 RCX: ffff888077cf3c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff888077cf3c00 R09: 0000000000000002 R10: 000000003b9aca00 R11: 0000000000000000 R12: 1ffff92001783f8b R13: ffffc9000bc1fc20 R14: 0000000000000002 R15: dffffc0000000000 FS: 00007f3a4de1a6c0(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa158952000 CR3: 000000007ceca000 CR4: 00000000003526f0 Call Trace: step_into+0xc5d/0xf30 fs/namei.c:2008 open_last_lookups fs/namei.c:3843 [inline] path_openat+0x1bc6/0x3830 fs/namei.c:4052 do_filp_open+0x1fa/0x410 fs/namei.c:4082 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_open fs/open.c:1460 [inline] __se_sys_open fs/open.c:1456 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1456 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3a4cf8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3a4de1a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f3a4d1b5fa0 RCX: 00007f3a4cf8e929 RDX: 0000000000000146 RSI: 000000000004e403 RDI: 0000200000000080 RBP: 00007f3a4d010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3a4d1b5fa0 R15: 00007fffbd3a33d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pick_link+0x4f1/0xe80 fs/namei.c:1949 Code: 4c 89 f7 e8 f1 fc ea ff 4d 8b 36 4d 85 f6 0f 84 9b 00 00 00 e8 d0 a4 89 ff 49 bf 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 b9 06 00 00 41 0f b6 2e bf 2f 00 00 00 RSP: 0018:ffffc9000bc1f7e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000bc1f908 RCX: ffff888077cf3c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff888077cf3c00 R09: 0000000000000002 R10: 000000003b9aca00 R11: 0000000000000000 R12: 1ffff92001783f8b R13: ffffc9000bc1fc20 R14: 0000000000000002 R15: dffffc0000000000 FS: 00007f3a4de1a6c0(0000) GS:ffff888125d84000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa328293fe8 CR3: 000000007ceca000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 4c 89 f7 mov %r14,%rdi 3: e8 f1 fc ea ff call 0xffeafcf9 8: 4d 8b 36 mov (%r14),%r14 b: 4d 85 f6 test %r14,%r14 e: 0f 84 9b 00 00 00 je 0xaf 14: e8 d0 a4 89 ff call 0xff89a4e9 19: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 20: fc ff df 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 b9 06 00 00 jne 0x6f0 37: 41 0f b6 2e movzbl (%r14),%ebp 3b: bf 2f 00 00 00 mov $0x2f,%edi